Agilent Technologies 8163B, Manual, Page: 124 / 466

Tunable Lasers What is a Tunable Laser ?
124
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
The LED beside the primary optical output is lit constantly, while the LED
beside the secondary optical output flashes. For example, if you select
<Both (master:2)> as the regulated path, the LED beside Output 2, the
High Power Output, is lit constantly and the LED beside Output 1, the Low
SSE optical output, flashes.
How to Set the Optical Output
1 Move to [Output] and press Enter.
2 Move to your chosen optical output and press Enter.
How to Enable the Optical Output
3 Move to [State] and press Enter.
4 Move to <On>, by using the cursor key, and press Enter to enable the output.
The LED beside the optical output is lit constantly.
How to Set Power and Attenuation
Attenuator
If your tunable laser has an built-in optical attenuator, you can set the laser
output power and then set the attenuation.
1 Move to the Tunable Laser channel and press [Details].
2 Choose the Output 2, the high power output, for a Tunable Laser module with
two optical outputs, as described in “
How to Set the Optical Output ” on
page 122. For modules with one optical output this is not necessary.
3 Move to the power parameter, [P], and press [Pwr unit].
If you enable the laser output for a module with two optical outputs by
pressing the Active hardkey on the module’s front panel, you automatically
choose the optical output for that module. For example, if you press the
Active hardkey beside Output 1, the Low SSE optical output, you choose
<Low SSE> as the optical output, the LED beside the Output 1 lights
constantly, and you see the screen in Figure 64 .
Furthermore, if you then proceed to press the A
CTIVE
hardkey beside
Output 2, the High Power Output, you choose <Both (master:1)> as the
optical output, the LED beside the Output 2 flashes.
If you press the Active hardkey beside a flashing LED, you disable the
unregulated optical output. If you press the Active hardkey beside a
constantly lit LED, you disable both optical outputs.
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